Portable crib



FIG. 1 is a front perspective view of a portable crib showing our newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a rear side view thereof.

CLAIM The ornamental design for a portable crib, as shown and described.